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不工作我已经采取了实体模型。我需要绑定第二下拉列表基于第一dropdownlist.I能够将第一下拉选择值传递给控制器操作,但我是没能在第二ropdownlist.Here显示值是我的看法代码,COGPHome.cshtml级联下拉菜单在asp.net mvc4(剃刀)
<script type="text/javascript">
$(document).ready(function() {
$('#productDetails').change(function() {
//var productId = document.getElementById('ProductDetails');
var productId = $(this).val();
var prod = { ProductId: productId };
$.ajax({
url: '/COGP/GetProductFamily',
type: 'POST',
data: prod,
success: function (data) {
}
});
});
})
<h2>@ViewBag.Title</h2>
<div id="dvfilter">
<table align="center">
<tr>
<td>
@Html.Label("Product:")
</td>
<td>
@Html.DropDownList("productDetails", "---select---")
</td>
<td>
@Html.Label("ProductFamily:")
</td>
<td>
@Html.DropDownList("productFamily", "---select---")
</td>
</tr>
</table>
下面是控制器代码
public class COGPController : Controller
{
COGPEntities objEnt = new COGPEntities();
public ActionResult COGPHome()
{
List<refProduct> objListproducts = new List<refProduct>();
objListproducts = (from c in objEnt.refProducts select c).ToList();
ViewData["productDetails"] = new SelectList(objListproducts, "ProductId", "Product");
ViewData["productFamily"] = new SelectList(string.Empty);
return View();
}
public ActionResult GetProductFamily(int productId)
{
List<refProductFamily> objListfamily = new List<refProductFamily>();
objListfamily = (from f in objEnt.refProductFamilies select f).ToList();
ViewData["productFamily"] = new SelectList(objListfamily, "ProductFamilyId", "ProductFamily");
return View();
}
}
您是否获得AJAX叫什么名字?如果是,那么什么是成功?你用'console.log(data)'检查过吗? –
我们试图保持成功的戒备,但它并没有解雇(我的意思是它不会成功的方法)。在浏览器控制台中,我收到了这个错误“POST http:// localhost:15229/COGP/GetProductFamily 500(Internal Server Error)”。 –